Color can make you look away or draw you in.

It has the power to create an emotion as powerful as music can. Color helps us instantly understand our environment. It is intrinsically important to our everyday life. It is all around us all the time and helps us to relate and to respond to our world, even if we generally take it for granted.
Design, is all about balance. The more complicated the colors and the scheme, the more difficult it is to achieve balance.
Yellow is often considered the brightest and most energizing of the warm colors.
In your designs, bright yellow can lend a sense of happiness and cheerfulness.